<template>
    <div class="cmt-container">
        <h3>发表评论</h3>
        <hr>
        <textarea placeholder="请输入要BB的内容（最多吐槽120字）" maxlength="120" v-model="msg"></textarea>
        <mt-button type="primary" size="large" @click="postComment">发表评论</mt-button>

        <div class="cmt-list">
            <div class="cmt-item" v-for="(item,i) in comments" :key="item.add_time">
                <div class="cmt-title">
                第{{i+1}}楼&nbsp;&nbsp;用户：{{item.user_name}}&nbsp;&nbsp;发表时间：{{ item.add_time | dateFormat }}</div>
                <div class="cmt-body">{{item.content === 'undefined'? '评论个毛线': item.content}}</div>
            </div>
        </div>
        <mt-button type="danger" size="large" plain @click="getMore">加载更多</mt-button>
    </div>
</template>

<script>
import { Toast } from 'mint-ui';

export default {
    data(){
        return{
            pageindex:1,  
            comments:[],   //所有的评论数据
            msg:''  //评论输入的内容
        }
    },
    created(){
        this.getComments()
    },
    methods:{
        getComments(){
            this.axios.get('../../../static/api/pinglun'+this.id+'.json').then((response) => {
                for(var i=0;i<response.data.length;i++){
                    if(response.data[i].pageindex==this.pageindex) {
                    this.comments=this.comments.concat(response.data[i]);
                    }              
                }
                
            })
        },
        getMore(){
            this.pageindex++;
            this.getComments()
        },
        postComment(){
            this.axios.get('../../../static/api/pinglun'+this.id+'.json/?'+{content:this.msg.trim()}).then((response) => {
                var cmt = {
                    user_name:"匿名用户",
                    add_time:Date.now(),
                    content:this.msg.trim()
                }
                this.comments.unshift(cmt);
                this.msg='';
            })  
            Toast('评论成功');
        }
    },
    props:["id"]
}
</script>

<style lang="scss" scoped>
.cmt-container{
    h3{
        font-size: 18px;
    }
    textarea{
        font-size: 14px;
        height: 85px;
        margin: 0;
    }
    .cmt-list{
        margin: 10px 0;
        .cmt-item{
            font-size: 13px;
            .cmt-title{
              line-height: 30px;
              background-color:#ccc;
            }
            .cmt-body{
              line-height: 35px;
              text-indent: 2em;
            }
        }
    }
}
</style>